| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a lateral mode from being made higher order and to avoid the problem of increase in cost and getting into difficulty with adjustment caused by increase of the number of components, in a semiconductor laser induced solid state laser. SOLUTION: In a semiconductor laser excitation solid state laser provided with a resonator that contains at least a solid state laser crystal 14 and a semiconductor laser 11 that excites the solid state laser crystal 14, at least one of optical members arranged in the resonator, for example, a light- transmitting surface 14a of the solid state laser crystal 14 has a size 1.5-7 times the diameter of a solid state laser beam 20 defined as 1/e2 diameter, in at least one direction which is orthogonal to the optical axis of the resonator.</p> |
